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  • Title: Isolation of the major intrinsic transmembrane protein of the human erythrocyte membrane.
    Author: Furthmayr H, Kahane I, Marchesi VT.
    Journal: J Membr Biol; 1976 Mar 18; 26(2-3):173-87. PubMed ID: 1263250.
    Abstract:
    The major intrinsic protein of the human erythrocyte membrane commonly referred to as "Band 3", was isolated by a multi-step procedure. Extraction of ghost membranes in dilute solutions of lithium diiodosalicylate removed most of the proteins considered to be extrinsic to the membrane. The resulting membrane fragments were solubilized in sodium dodecyl sulfate, and the major sialoglycoprotein (glycophorin A) was removed by wheat germ agglutinin-Sepharose affinity chromatography. Gel filtration in sodium dodecyl sulfate was used as the final step to yield the band 3 polypeptide in electrophoretically homogeneous form.
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